.container {
  flex-direction: column;
  font-size: 20px;
  padding: 100px 0;
}

.header {
  position: fixed;
  top: 0;
  height: 100px;
  background-color: blue;
}

.header text {
  font-size: 50px;
  width: 100%;
  color:#fff;
  text-align: center;
  ;
}

.main {
  flex-wrap: wrap;
  background-color: #8a2be2;
}

.main text {
  color: #fff;
  font-size: 50px;
  width: 100%;
  text-align: center;
}

.main .item {
  width: 33.333%;
  height: 200px;
}

.footer {
  position: fixed;
  bottom: 0;
  height: 100px;
  background-color: #a52a2a;
}

.footer text {
  color: #fff;
  font-size: 50px;
  width: 100%;
  text-align: center;
}
slider{
  height:30px;
}